Roman Missal placement

In Paul Turner's Blog by Paul Turner

Q:  I have ordered the Excerpts from the Roman Missal for my parish. One of my priests is thinking we should have the Roman Missal on the altar all the time so that the servers don’t ever have to touch it and will just bring the Excerpts over to the priest at the chair. Is that correct or how should we handle the placement of these two missals?

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A:  The missal should not be placed on the altar until the preparation of the gifts. See GIRM 117 and 306.  Or my book, Let Us Pray.